Welcome to Define Motors – Reliable Auto Repair & Dealership Services in Chantilly, VA
Your Local Trusted Auto Repair Shop & Used Car Dealership
At Define Motors, we take pride in being Chantilly’s one-stop destination for professional auto repair services and dependable used car sales. Conveniently located at 25284 Pleasant Valley Rd, Suite 120, Chantilly, VA 20152, our shop is known for honest service, fair pricing, and same-day repairs on most vehicles.
Whether your car needs a quick oil change, a detailed engine diagnostic, or a full muffler replacement, our certified mechanics have you covered. We specialize in all makes and models, including gas and diesel pick-up trucks, and ensure every repair is done with precision and care.
Make An Appointment
Need fast, reliable auto service? Schedule your appointment with Define Motors today! Whether it’s a quick oil change or a full diagnostic, our expert mechanics are ready to help—on your time. Call us now or book your visit online!
Working Hours
- 🕘 Hours: Monday – Saturday | 10:00 AM – 7:00 PM
- Sunday: CLOSED
What We Do
At Define Motors, we specialize in complete auto repair and maintenance services for all makes and models. From routine oil changes and brake replacements to advanced engine diagnostics and suspension repairs, our expert mechanics are equipped to handle it all. We also service pick-up trucks (gas & diesel) and offer same-day repairs whenever possible. With honest pricing and dependable workmanship, we keep your vehicle running smoothly—every mile of the way.
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Our Auto Repair Services Include
- Muffler & Exhaust System Repair/Replacement
Engine Diagnostics & Replacement
Transmission Diagnostics & Replacement
Suspension & Steering Repairs
Brake Service & Replacement
Oil Changes & Fluid Maintenance
Radiator & Cooling System Repairs
Battery & Electrical Diagnostics
Alternator & Starter Replacement
Timing Belt & Chain Services
Check Engine Light Troubleshooting
AC & Heating System Repairs
Serpentine Belt Replacement
Fuel System Repairs
General Mechanical Repairs
Maintenance for Pick-Up Trucks (Gas & Diesel)
🚗 Why Choose Define Motors?
At Define Motors, we offer reliable vehicles, transparent pricing, and top-tier customer service. Our expert team ensures a smooth buying experience, whether you’re shopping for your first car or upgrading your ride. Drive with confidence—choose Define Motors.
✅ ASE-Certified Mechanics
✅ Same-Day Service Available
✅ Honest Pricing – No Hidden Fees
✅ Walk-Ins Welcome
✅ Trusted by Chantilly Locals
✅ Friendly, Transparent Customer Support
We believe in building long-term relationships with our customers by offering honest advice, quality workmanship, and reliable turnarounds. Whether it’s a routine tune-up or a major repair, we’re committed to keeping your car performing at its best.
Request Call Back
Do I need an appointment for service at Define Motors?
No appointment needed! Walk-ins are always welcome. We also aim for same-day service whenever possible.
What types of vehicles do you service?
We service all makes and models — both domestic and foreign, including gas and diesel pickup trucks.
Do you offer same-day repairs?
Yes! Most common repairs like brake jobs, oil changes, and diagnostics can be done the same day.
Where is Define Motors located?
We’re located at 25284 Pleasant Valley Rd, Suite 120, Chantilly, VA 20152 — near South Riding and Stone Ridge.
What services do you offer?
We offer a full range of services including brake repair, engine diagnostics, transmission work, muffler repair, oil changes, battery replacement, AC/heating repairs, and more.
Are your prices competitive?
Yes! We provide honest, upfront pricing with no hidden fees. You’ll always know what to expect.
What are your business hours?
We’re open Monday through Saturday, 10:00 AM to 7:00 PM.
Do you work on check engine light issues?
Absolutely. We specialize in engine diagnostics and can pinpoint the cause of your check engine light quickly.
How can I contact Define Motors?
You can call us at (703) 662-3727 or just stop by our location during business hours.
Do you provide warranty on your services?
Yes, we stand behind our work. Warranties vary by service — please ask us for details during your visit.